Add basic region effects

api/src/main/java/net/islandearth/rpgregions/api/events/RegionsEffectEvent.java

@@ -0,0 +1,36 @@
+package net.islandearth.rpgregions.api.events;
+
+import org.bukkit.entity.Player;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+
+import java.util.List;
+
+public class RegionsEffectEvent extends Event {
+
+	private static final HandlerList HANDLER_LIST = new HandlerList();
+	private final Player player;
+	private final List<String> regions;
+
+	public RegionsEffectEvent(Player player, List<String> regions) {
+		this.player = player;
+		this.regions = regions;
+	}
+
+	public Player getPlayer() {
+		return player;
+	}
+
+	public List<String> getRegions() {
+		return regions;
+	}
+
+	@Override
+	public HandlerList getHandlers() {
+		return HANDLER_LIST;
+	}
+
+	public static HandlerList getHandlerList() {
+		return HANDLER_LIST;
+	}
+}

api/src/main/java/net/islandearth/rpgregions/effects/PotionRegionEffect.java

@@ -0,0 +1,31 @@
+package net.islandearth.rpgregions.effects;
+
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.potion.PotionEffect;
+
+import java.util.List;
+
+public class PotionRegionEffect extends RegionEffect {
+
+	private final PotionEffect potionEffect;
+
+	public PotionRegionEffect(PotionEffect potionEffect, List<ItemStack> ignoreItems) {
+		super(ignoreItems);
+		this.potionEffect = potionEffect;
+	}
+
+	public PotionEffect getPotionEffect() {
+		return potionEffect;
+	}
+
+	@Override
+	public void effect(Player player) {
+		player.addPotionEffect(potionEffect);
+	}
+
+	@Override
+	public String getName() {
+		return null;
+	}
+}

api/src/main/java/net/islandearth/rpgregions/effects/RegionEffect.java

@@ -0,0 +1,27 @@
+package net.islandearth.rpgregions.effects;
+
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.List;
+
+public abstract class RegionEffect {
+
+	private final List<ItemStack> ignoreItems;
+
+	public RegionEffect(List<ItemStack> ignoreItems) {
+		this.ignoreItems = ignoreItems;
+	}
+
+	public abstract void effect(Player player);
+
+	public List<ItemStack> getIgnoreItems() {
+		return ignoreItems;
+	}
+
+	public boolean shouldIgnore(ItemStack item) {
+		return ignoreItems.contains(item);
+	}
+
+	public abstract String getName();
+}